Taylor Swift looks totally different on the set of her new music video for “I Knew You Were Trouble”, in Los Angeles.

The 22-year-old singer was spotted on the set of her new music video last night (after she appeared at the AMA’s) wearing cutoff jean shorts – and a pink hairdo!

Swift is apparently “shocked” by the huge success of her latest album, “Red”. It is still on the top of Billboard 100, three weeks in a row. ”I had hoped that my fans would get what I was doing there – that they would embrace it,” Swift told crowds in London on Nov. 6. “And the fact that they celebrated that and 1.2 million of them went out and bought it the first week and it became my first U.K. No. 1 album, it is absolutely unbelievable,” she said.

Here are pictures of Taylor on set of her new video, and below pictures of her at the AMA’s!

Photos: FameFlynet